C++ PhysicalProperties::getVelocityY方法代码示例

bool Physics::willObjectsCollide(CollidableObject* coA, CollidableObject* coB)
{
	PhysicalProperties* pp = coA->getPhysicalProperties();
	BoundingVolume* bv = coA->getBoundingVolume();
	float widthA = bv->getWidth();
	float heightA = bv->getHeight();
	float xA = pp->getX() + bv->getX();
	float yA = pp->getY() + bv->getY();
	float velXA = pp->getVelocityX();
	float velYA = pp->getVelocityY();
	float minXA = xA-(widthA/2);
	float maxXA = xA+(widthA/2);
	float minYA = yA-(heightA/2);
	float maxYA = yA+(heightA/2);

	if(velXA >= 0)
		maxXA += velXA; 
	if(velXA < 0)
		minXA += velXA; 
	if(velYA >= 0)
		maxYA += velYA; 
	if(velYA < 0)
		minYA += velYA; 

	pp = coB->getPhysicalProperties();
	bv = coB->getBoundingVolume();
	float widthB = bv->getWidth();
	float heightB = bv->getHeight();
	float xB = pp->getX() + bv->getX();
	float yB = pp->getY() + bv->getY();
	float velXB = pp->getVelocityX();
	float velYB = pp->getVelocityY();
	float minXB = xB-(widthB/2);
	float maxXB = xB+(widthB/2);
	float minYB = yB-(heightB/2);
	float maxYB = yB+(heightB/2);

	if(velXB >= 0)
		maxXB += velXB; 
	if(velXB < 0)
		minXB += velXB; 
	if(velYB >= 0)
		maxYB += velYB; 
	if(velYB < 0)
		minYB += velYB; 

	if( !(maxXB < minXA || minXB > maxXA || maxYB < minYA || minYB > maxYA))
		return true;
	return false;
}

/*
	update - This method should be called once per frame. It updates
	both the sprites and the game world. Note that even though the game
	world is for static data, should the user wish to put anything dynamic
	there (like a non-collidable moving layer), the updateWorld method
	is called.
*/
void GameStateManager::update(Game *game)
{
	game->getGameRules()->spawnEnemies(game);
	spriteManager->update(game);
	world.update(game);
	physics.update(game);

	AnimatedSprite *p = spriteManager->getPlayer();
	PhysicalProperties *pp = p->getPhysicalProperties();
	float pVelX = pp->getVelocityX();
	float pVelY = pp->getVelocityY();

	//VIEWPORT SCOPING
	/*Viewport *vp = game->getGUI()->getViewport();
	
	if(pVelX < 0 
		&& (pp->round(pp->getX() - vp->getViewportX())) < vp->getViewportWidth()/3)
	{
		vp->setScrollSpeedX(pVelX);
		if(vp->getViewportX() == 0)
			vp->setScrollSpeedX(0);
	}
	else if(pVelX > 0 
		&& (pp->round(pp->getX() - vp->getViewportX())) > (vp->getViewportWidth()/3*2))
	{
		vp->setScrollSpeedX(pVelX);
		if(vp->getViewportX()+vp->getViewportWidth() == world.getWorldWidth())
			vp->setScrollSpeedX(0);
		
	}
	else
	{
		vp->setScrollSpeedX(0);
	}

	if(pVelY < 0 
		&& (pp->round(pp->getY() - vp->getViewportY())) < vp->getViewportHeight()/3)
	{
		vp->setScrollSpeedY(pVelY);
		if(vp->getViewportY() == 0)
			vp->setScrollSpeedY(0);
	}
	else if(pVelY > 0 
		&& (pp->round(pp->getY() - vp->getViewportY())) > (vp->getViewportHeight()/3*2))
	{
		vp->setScrollSpeedY(pVelY);
		if(vp->getViewportY()+vp->getViewportHeight() == world.getWorldHeight())
			vp->setScrollSpeedY(0);
	}
	else
	{
		vp->setScrollSpeedY(0);
	}

	vp->moveViewport(	vp->getScrollSpeedX(),
						vp->getScrollSpeedY(),
						world.getWorldWidth(),
						world.getWorldHeight());*/
}

/*
	think - called once per frame, this is where the bot performs its
	decision-making. Note that we might not actually do any thinking each
	frame, depending on the value of cyclesRemainingBeforeThinking.
*/
void BackAndForthBot::think(Game *game)
{
	// EACH FRAME WE'LL TEST THIS BOT TO SEE IF WE NEED
	// TO PICK A DIFFERENT DIRECTION TO FLOAT IN
	PhysicalProperties* pp	= &(this->pp);
	if(!dead)
	{
		if(pp->getVelocityX() == 0)
		{
			pp->setVelocity(vel, pp->getVelocityY());
		}
		if (cyclesRemainingBeforeChange == 0)
		{
			vel *= -1;
			pp->setVelocity(vel, pp->getVelocityY());

			if(pp->isOrientedRight())
			{
				this->setCurrentState(L"WALKL_STATE");
				pp->setOrientedLeft();
			}
			else
			{
				this->setCurrentState(L"WALK_STATE");
				pp->setOrientedRight();
			}

			cyclesRemainingBeforeChange = pathSize;

		}
		else
			cyclesRemainingBeforeChange--;

	}
	else
	{
		wstring curState = this->getCurrentState();
		pp->setVelocity(0,pp->getVelocityY());
		int lastFrame = this->getSpriteType()->getSequenceSize(curState)-2;
		if(this->getFrameIndex() == lastFrame)
		{
			game->getGSM()->getSpriteManager()->removeBot(this);
		}
	}
}

/*
	handleKeyEvent - this method handles all keyboard interactions. Note that every frame this method
	gets called and it can respond to key interactions in any custom way. Ask the GameInput class for
	key states since the last frame, which can allow us to respond to key presses, including when keys
	are held down for multiple frames.
*/
void SoSKeyEventHandler::handleKeyEvents(Game *game)
{
	// WE CAN QUERY INPUT TO SEE WHAT WAS PRESSED
	GameInput *input = game->getInput();

	// LET'S GET THE PLAYER'S PHYSICAL PROPERTIES, IN CASE WE WANT TO CHANGE THEM
	GameStateManager *gsm = game->getGSM();
	AnimatedSprite *player = gsm->getSpriteManager()->getPlayer();
	PhysicalProperties *pp = player->getPhysicalProperties();
	
	if(gsm->isAtSplashScreen())
	{
		if(input->isKeyDown(ENTER_KEY))
		{
			gsm->goToMainMenu();
		}
	}

	

	// IF THE GAME IS IN PROGRESS
	if (gsm->isGameInProgress())
	{
		// CHECK FOR WASD KEYS FOR MOVEMENT
		int incX = 0;
		int incY = 0;
		bool movingLR = false;
		bool attacking = false;

		if(!pp->isStunned())
		{
			if(input->isKeyDown(SPACE_KEY))
			{
				attacking = true;
				if(input->isKeyDownForFirstTime(SPACE_KEY))
				{
			
					player->setCurrentState(L"ATTACK_STATE");
					if(!pp->isOrientedRight())
						player->setCurrentState(L"ATTACKL_STATE");
				}
			
			}

			// WASD AND DIRECTION KEY PRESSES WILL CONTROL THE PLAYER,
			// SO WE'LL UPDATE THE PLAYER VELOCITY WHEN THESE KEYS ARE
			// PRESSED, THAT WAY PHYSICS CAN CORRECT AS NEEDED
			float vX = pp->getVelocityX();
			float vY = pp->getVelocityY();

		
			if (input->isKeyDown(A_KEY) || input->isKeyDown(LEFT_KEY))
			{
				movingLR = true;
				pp->setOrientedLeft();
				vX = -PLAYER_SPEED;
				if (vY == 0 && player->getCurrentState().compare(L"LEFT_STATE") != 0)
					player->setCurrentState(L"LEFT_STATE");
				else if(vY != 0 && player->getCurrentState().compare(L"JUMPL_STATE") != 0)
					player->setCurrentState(L"JUMPL_STATE");
			}
			if (input->isKeyDown(D_KEY) || input->isKeyDown(RIGHT_KEY))
			{
				movingLR = true;
				pp->setOrientedRight();
				vX = PLAYER_SPEED;
				if (vY == 0 && player->getCurrentState().compare(L"RIGHT_STATE") != 0)
					player->setCurrentState(L"RIGHT_STATE");
				else if(vY != 0 && player->getCurrentState().compare(L"JUMP_STATE") != 0)
					player->setCurrentState(L"JUMP_STATE");
			}
			/*if (input->isKeyDown(S_KEY) || input->isKeyDown(DOWN_KEY))
			{
				vY = PLAYER_SPEED;
			}*/
			if (input->isKeyDown(W_KEY) || input->isKeyDown(UP_KEY))
			{
			

				if ((input->isKeyDownForFirstTime(W_KEY) || input->isKeyDownForFirstTime(UP_KEY))
					&& pp->hasDoubleJumped() == false)
				{
					if(pp->hasJumped() == true)
						pp->setDoubleJumped(true);
					pp->setJumped(true);

					vY = -PLAYER_SPEED;
					player->setCurrentState(L"JUMP_STATE");
					if(vX < 0)
						player->setCurrentState(L"JUMPL_STATE");
				}
			}	

			if(!movingLR)
//.........这里部分代码省略.........

//.........这里部分代码省略.........

	//HERE, COLLIDE SPRITES WITH OTHER SPRITES
	collideTestWithSprites(game, player, &collisions);
	botIterator = sm->getBotsIterator();
	while (botIterator != sm->getEndOfBotsIterator())
	{			
		Bot *bot = (*botIterator);
		if(bot->isCurrentlyCollidable() == true);
			collideTestWithSprites(game, bot, &collisions);
		botIterator++;
	}

	//SORT COLLISIONS
	collisions.sort(compare_collisionTime);

	//RESOLVING ALL THE COLLISIONS
	while(collisions.empty() == false)
	{
		Collision* currentCollision = collisions.front();
		collisions.pop_front();
		float colTime = currentCollision->getTOC();
		CollidableObject* co1 = currentCollision->getCO1();
		CollidableObject* co2 = currentCollision->getCO2();

		if(colTime >= 0 && colTime <= 1)
		{
			
			pp = co1->getPhysicalProperties();
			//pp->setVelocity(pp->getVelocityX()*9.99f,pp->getVelocityY()*9.99f);
			pp = co2->getPhysicalProperties();
			//pp->setVelocity(pp->getVelocityX()*9.99f,pp->getVelocityY()*9.99f);

			pp = player->getPhysicalProperties();
			pp->setPosition(pp->getX() + (pp->getVelocityX()*(colTime-timer)),pp->getY() + (pp->getVelocityY()*(colTime-timer)));
			botIterator = sm->getBotsIterator();
			while (botIterator != sm->getEndOfBotsIterator())
			{			
				Bot *bot = (*botIterator);
				pp = bot->getPhysicalProperties();
				pp->setPosition(pp->getX() + (pp->getVelocityX()*(colTime-timer)), pp->getY() + (pp->getVelocityY()*(colTime-timer)));
				botIterator++;
			}

			gsm->updateViewport(game, colTime-timer);

			resolveCollision(game, currentCollision);
			gR->gameSpecificResolve(game, currentCollision);
			
			boolean deleteLast = false;
			list<Collision*>::iterator cIterator = collisions.begin();
			list<Collision*>::iterator lastIterator;
			while(cIterator != collisions.end())
			{
				if(deleteLast == true)
				{
					collisions.erase(lastIterator);
				}
				deleteLast = false;
				Collision* check = (*cIterator);
				if(check->contains(co1) || check->contains(co2))
				{
					CollidableObject* checkStatic = check->getCO2();
					if(checkStatic->isStaticObject())
					{
						coStackCounter ++;
						coStack[coStackCounter] = checkStatic;

void Physics::resolveCollision(Game* game, Collision* currentCollision)
{
	CollidableObject* co1 = currentCollision->getCO1();
	CollidableObject* co2 = currentCollision->getCO2();
	PhysicalProperties* pp;
	BoundingVolume* bv;
	AnimatedSprite* player = game->getGSM()->getSpriteManager()->getPlayer();
	
	if(co2->isStaticObject() == true)
	{
		pp = co2->getPhysicalProperties();
		bv = co2->getBoundingVolume();
		float tX = pp->getX();
		float tY = pp->getY();
		float tXR = tX + bv->getWidth();
		float tYB = tY + bv->getHeight();

		pp = co1->getPhysicalProperties();
		bv = co1->getBoundingVolume();
		float x = pp->getX() + bv->getX() - (bv->getWidth()/2);
		float y = pp->getY() + bv->getY() - (bv->getHeight()/2);
		float xR = x+bv->getWidth();
		float yB = y+bv->getHeight();
		//pp->setVelocity(0, 0);

		/*if(x < tX)
			pp->setX(pp->getX() - 0.1);
		if(x > tX)
			pp->setX(pp->getX() + 0.1);*/
		if(x >= tXR)
		{
			pp->setX(pp->getX() + 0.1);
			pp->setVelocity(0, pp->getVelocityY());
		}
		if(xR <= tX)
		{
			pp->setX(pp->getX() - 0.1);
			pp->setVelocity(0, pp->getVelocityY());
		}
		if(y >= tYB)
		{
			pp->setY(pp->getY() + 0.1);
			pp->setVelocity(pp->getVelocityX(), 0);
		}
		if(yB <= tY)
		{
			pp->setY(pp->getY() - 0.1);
				if(co1 == player)
				{
					pp->setJumped(false);
					pp->setDoubleJumped(false);
					pp->setStunned(false);
				}
				pp->setVelocity(pp->getVelocityX(), 0);
		}

		//if(currentCollision->getTOC() == currentCollision->getSYC())
		//{
		//	/*if(pp->getVelocityY() < 0)
		//	{
		//		pp->setY(pp->getY() + 0.1);
		//	}
		//	else
		//	{
		//		pp->setY(pp->getY() - 0.1);
		//		if(co1 == player)
		//		{
		//			pp->setJumped(false);s
		//			pp->setDoubleJumped(false);
		//			if(player->getCurrentState().compare(L"JUMP_STATE") == 0 
		//				|| player->getCurrentState().compare(L"JUMPL_STATE") == 0)
		//			{
		//				player->setCurrentState(L"IDLE_STATE");
		//			}
		//		}
		//	}*/
		//	if(y < tY)
		//	{
		//		pp->setY(pp->getY() - 0.1);
		//		if(co1 == player)
		//		{
		//			pp->setJumped(false);
		//			pp->setDoubleJumped(false);
		//			/*if(player->getCurrentState().compare(L"JUMP_STATE") == 0 
		//				|| player->getCurrentState().compare(L"JUMPL_STATE") == 0)
		//			{
		//				player->setCurrentState(L"IDLE_STATE");
		//			}*/
		//		}
		//	}
		//	if(y > tY)
		//	{
		//		pp->setY(pp->getY() + 0.1);
		//		
		//	}
		//	pp->setVelocity(pp->getVelocityX(), 0);
		//	
		//	
		//}
		//else if(currentCollision->getTOC() == currentCollision->getSXC())
//.........这里部分代码省略.........

void Physics::collideTestWithTiles(CollidableObject *c,TiledLayer *tL, list<Collision*> *collisions)
{
	BoundingVolume *bv = c->getBoundingVolume();
	float toRight= bv->getWidth()/2;
	float toBottom = bv->getHeight()/2;

	PhysicalProperties *pp = c->getPhysicalProperties();
	float x = pp->getX()+bv->getX();
	float y = pp->getY()+bv->getY();
	float xVel = pp->getVelocityX();
	float yVel = pp->getVelocityY();
	float minX = x - toRight;
	float maxX = x + toRight;
	float minY = y - toBottom;
	float maxY = y + toBottom;

	if(xVel > 0)
		maxX += xVel;
	else
		minX += xVel;
	if(yVel > 0)
		maxY += yVel;
	else
		minY += yVel;

	 int tW = tL->getTileWidth();
	 int tH = tL->getTileHeight();

	int firstCol = minX/tW;
	int lastCol = maxX/tW;
	int firstRow = minY/tH;
	int lastRow = maxY/tH;

	if(firstCol < 0)
		firstCol = 0;
	if(firstRow < 0)
		firstRow = 0;
	if(lastCol >= tL->getColumns())
		lastCol = tL->getColumns() - 1;
	if(lastRow >= tL->getRows())
		lastRow = tL->getRows() - 1;

	for(int i = firstRow; i <= lastRow; i++)
	{
		for(int j = firstCol; j <= lastCol; j++)
		{
			Tile* current = tL->getTile(i,j);
			if(current->collidable == true)
			{
				if( !( (i+1)*tH < minY || i*tH > maxY || (j+1)*tW < minX || j*tW > maxX)  )
				{
					CollidableObject* tileCO = coStack[coStackCounter];
					coStackCounter --;
					BoundingVolume *bv = tileCO->getBoundingVolume();
					bv->setWidth(tW);
					bv->setHeight(tH);
					bv->setX(tW/2);
					bv->setY(tW/2);
					pp = tileCO->getPhysicalProperties();
					pp->setPosition(j*tW,i*tH);
					

					/*
					Collision* currentCollision = collisionStack.top();
					collisionStack.pop();*/
					Collision* currentCollision = collisionStack[collisionStackCounter];
					collisionStackCounter --;


					currentCollision->setCO1(c);
					currentCollision->setCO2(tileCO);
					currentCollision->calculateTimes();

					collisions->push_back(currentCollision);
				}
			}
		}
	}
	
}

void Physics::getCollisionsSpriteSprite(	World *world,  
                                        CollidableObject *spriteA,
                                        CollidableObject *spriteB,
                                        float percentageOfFrameRemaining)
{
    //vector<WorldLayer*> *layers = world->getLayers();
    AABB *boundingVolumeA = spriteA->getBoundingVolume();
    AABB *boundingVolumeB = spriteB->getBoundingVolume();
    PhysicalProperties *ppA = spriteA->getPhysicalProperties();
    PhysicalProperties *ppB = spriteB->getPhysicalProperties();


    int centerXA = boundingVolumeA->getCenterX();
    int centerXB = boundingVolumeB->getCenterX();

    int centerYA = boundingVolumeA->getCenterY();
    int centerYB = boundingVolumeB->getCenterY();

    int widthA = boundingVolumeA->getWidth();
    int widthB = boundingVolumeB->getWidth();

    int heightA = boundingVolumeA->getHeight();
    int heightB = boundingVolumeB->getHeight();

    int vxA = ppA->getVelocityX();
    int vxB = ppB->getVelocityX();

    int vyA = ppA->getVelocityY();
    int vyB = ppB->getVelocityY();
    // A - B
    if ((centerXB - (widthB/2)) > (centerXA + (widthA/2)))
    {
        //if(!((vxA - vxB) == 0)) {
        // if(boundingVolumeA->overlapsX(boundingVolumeB)){

        if(!((vxA - vxB) == 0)) {
            int tx_first_contact = abs(((centerXB - (widthB/2)) - (centerXA + (widthA/2)))/(vxA - vxB));
            int tx_last_contact = abs(((centerXB + (widthB/2)) - (centerXA - (widthA/2)))/(vxA - vxB));

            if(tx_first_contact > percentageOfFrameRemaining)
            {
                //there`s no collision
            }
            else
            {
                if(!(vyA - vyB) == 0)
                {
                    //there`s contact on X axis, so let`s see if there`s contact on y axis
                    int ty_first_contact = abs(((centerYB - (heightB/2)) - (centerYA + (heightA/2)))/(vyA - vyB));
                    //int ty_first_contact =  boundingVolumeA->overlapsY(boundingVolumeB);
                    int ty_last_contact = abs(((centerYB + (heightB/2)) - (centerYA - (heightA/2)))/(vyA - vyB));
                    if(ty_first_contact > percentageOfFrameRemaining)
                    {
                        //there`s no collision
                    }
                    else
                    {
                        //there`s collision!
                        //add collision to vector
                        addCollisionSpriteSprite(spriteA, spriteB);
                    }
                }

                else 
                {
                    //none of them are not going anywhere up, so they must collide on x axis
                    //if they collide on y
                    //if(((centerYB + heightB/2) - (centerYA - heightA/2)) >= 0)
                    if(boundingVolumeA->overlapsY(boundingVolumeB))
                    {addCollisionSpriteSprite(spriteA, spriteB);}

                }

                // }
            }
        }
        else 
        {
            //the situation here is kind of special
            //they could be stopped in X, or they could be walking in the same velocity
            //in the second situation, we are cool because they wouldn`t collide anyway
            //in the firt situation, they could colide (one on top of the other)
            //because of this, we have to make sure that one is on top of the other
            //and that they can collide on y axis
            //boundingVolumeB->setWidth(boundingVolumeB->getWidth() *2);
            if(boundingVolumeA->myOverlapsX(boundingVolumeB))// && !(boundingVolumeA->overlapsY(boundingVolumeB)))
            {
                //boundingVolumeB->setWidth(boundingVolumeB->getWidth()/2);
                addCollisionSpriteSprite(spriteA, spriteB);
            }




        }
    }
    // B - A
    else
    {
        if(!((vxB - vxA) == 0)) {
//.........这里部分代码省略.........